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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Publications of NA 044-00-09 GA

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DIN 51351	2007-08	Standards	Testing of lubricants - Determination of floc point of refrigerator oils by pressure tube method More	Order from DIN Media
DIN 51503-1	2021-12	Standards	Lubricants - Refrigeration oils - Part 1: Minimum requirements More	Order from DIN Media
DIN 51503-2	2015-09	Standards	Lubricants - Refrigerator oils - Part 2: Used refrigerator oils More	Order from DIN Media
DIN 51503-2	2024-12	Draft standard	Lubricants - Refrigerator oils - Part 2: Used refrigerator oils More	Comment draft
DIN 51514	1996-11	Standards	Testing of lubricants - Determination of the mixture gap of refrigerator oil in refrigerants by pressure tube method More	Order from DIN Media
DIN 51538	1998-09	Standards	Testing of lubricants - Testing of resistance of refrigerator oils to ammonia More	Order from DIN Media

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